US7416071B2 - Braking method for a vehicle - Google Patents

Braking method for a vehicle Download PDF

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Publication number
US7416071B2
US7416071B2 US10/559,515 US55951505A US7416071B2 US 7416071 B2 US7416071 B2 US 7416071B2 US 55951505 A US55951505 A US 55951505A US 7416071 B2 US7416071 B2 US 7416071B2
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US
United States
Prior art keywords
vehicle
transmission
braking
brake system
frictional shift
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Application number
US10/559,515
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English (en)
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US20060113158A1 (en
Inventor
Christian Popp
Peter Schiele
Christian Schwemer
Georg Gierer
Klaus Steinhauser
Bernd Allgaier
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZF Friedrichshafen AG
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ZF Friedrichshafen AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
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Assigned to ZF FRIEDRICHSHAFEN AG reassignment ZF FRIEDRICHSHAFEN AG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: ALLGAIER, BERND, GIERER, GEORG, POPP, CHRISTIAN, SCHIELE, PETER, SCHWEMER, CHRISTIAN, STEINHAUSER, KLAUS
Publication of US20060113158A1 publication Critical patent/US20060113158A1/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/0059—Braking of gear output shaft using simultaneous engagement of friction devices applied for different gear ratios
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
    • B60T8/88—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration with failure responsive means, i.e. means for detecting and indicating faulty operation of the speed responsive control means
    • B60T8/885—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration with failure responsive means, i.e. means for detecting and indicating faulty operation of the speed responsive control means using electrical circuitry
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/10—Conjoint control of vehicle sub-units of different type or different function including control of change-speed gearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/18—Conjoint control of vehicle sub-units of different type or different function including control of braking systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
    • B60W30/18—Propelling the vehicle
    • B60W30/18009—Propelling the vehicle related to particular drive situations
    • B60W30/18109—Braking
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
    • B60W30/18—Propelling the vehicle
    • B60W30/1819—Propulsion control with control means using analogue circuits, relays or mechanical links
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T2270/00—Further aspects of brake control systems not otherwise provided for
    • B60T2270/40—Failsafe aspects of brake control systems
    • B60T2270/404—Brake-by-wire or X-by-wire failsafe
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W2540/00—Input parameters relating to occupants
    • B60W2540/12—Brake pedal position
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
    • F16H59/68—Inputs being a function of gearing status
    • F16H59/72—Inputs being a function of gearing status dependent on oil characteristics, e.g. temperature, viscosity
    • F16H2059/725—Sensing or calculating temperature of friction devices, e.g. clutches to prevent overheating of friction linings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/12—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures
    • F16H2061/122—Avoiding failures by using redundant parts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/21—Providing engine brake control
    • F16H2061/213—Providing engine brake control for emergency braking, e.g. for increasing brake power in emergency situations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
    • F16H59/50—Inputs being a function of the status of the machine, e.g. position of doors or safety belts
    • F16H59/54—Inputs being a function of the status of the machine, e.g. position of doors or safety belts dependent on signals from the brakes, e.g. parking brakes

Definitions

  • the present invention concerns a braking method for a vehicle.
  • diagnosis and monitoring systems are primarily intended to ensure passenger protection and driving safety; further aims are to ensure that the vehicle remains available for use and to protect the transmission system and its components.
  • the purpose of the present invention is to indicate a braking method for a vehicle, as a safety measure and replacement function in the event that the vehicle's working brake system should fail, in particular the X-by-wire brake system of a motor vehicle, the method ensuring safe braking in certain emergency situations.
  • the sole FIGURE is a flow diagram showing the braking method for a vehicle.
  • a braking method for a vehicle in which the vehicle is braked with the help of the transmission system by way of defined shifts of frictional shift elements (transmission clutches or transmission brakes) until the vehicle comes to rest, such that the combination of shift elements used does not correspond to the shift logic during normal driving.
  • frictional shift elements transmission clutches or transmission brakes
  • the vehicle's working brake system for example the E-brake (X-by-wire brake) system has failed at a time when the brake pedal is actuated
  • the vehicle is braked in a controlled manner via the transmission by way of one or more monitoring functions.
  • at least one additional frictional transmission element which does not correspond to the shift logic of the currently engaged gear is advantageously actuated.
  • the resultant braking effect is not produced by a downshift initiated when the vehicle's working brake system fails, but rather by a defined load on the transmission. This can continue until the vehicle comes to rest.
  • a parking block of the transmission or a vehicle parking brake can also be actuated. It will be clear to those with knowledge of the field that for this, a corresponding actuation system must be provided in the transmission or in the vehicle, for example in the transmission an E-shift (shift-by-wire) with an active electric connection between the operating element (selector lever) of the transmission inside the vehicle and the parking block of the transmission.
  • E-shift shift-by-wire
  • the frictional shift element additionally engaged compared with the normal shift logic is a brake (disk brake, belt brake, etc.) arranged within the transmission or acting on the drive output of the transmission.
  • a brake disk brake, belt brake, etc.
  • the force flow in the transmission incorporates a defined redundancy in the sense that, by way of a software function, the torque or shifting pressure at the frictional shift element engaged additionally compared with the normal shift logic is regulated preferably in such manner that the vehicle's drive wheels undergo maximum or a specified braking. During this, however, the vehicle's drive wheels must not be locked while the current speed of the vehicle has not yet decreased to a defined value close to zero.
  • the shifting pressure or torque to be set can be determined as a function of the brake pedal actuation force and/or the ACC-radar sensor (distance control unit) and/or the actual braking deceleration of the vehicle.
  • a further second frictional shift element (not previously engaged) is actuated when the limiting thermal load that can be sustained by the first frictional shift element engaged to block the transmission is reached, in order to avoid damaging the transmission.
  • a shift can also take place to another (higher or lower) gear when the limiting thermal load of the first frictional shift element engaged to block the transmission is reached in such an emergency situation of the vehicle, so that a different clutch combination can come into use for blocking the transmission in order to brake the vehicle under control.
  • the vehicle can be additionally or alternatively braked by actuating two frictional shift elements (in particular brakes) in the transmission or a separate frictional shift element acting on the drive output of the transmission, this engagement of two brakes or of the separate shift element not corresponding to the shift logic or shift element combination for normal driving.
  • two frictional shift elements in particular brakes
  • a separate frictional shift element acting on the drive output of the transmission this engagement of two brakes or of the separate shift element not corresponding to the shift logic or shift element combination for normal driving.
  • the method according to the invention is not limited to use in change-under-load transmissions; it can be used with continuously variable transmissions, automated shift transmissions and dual clutch transmissions.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Automation & Control Theory (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Transmission Device (AREA)
  • Regulating Braking Force (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)
  • Control Of Driving Devices And Active Controlling Of Vehicle (AREA)
US10/559,515 2003-06-14 2004-05-15 Braking method for a vehicle Active 2025-06-12 US7416071B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE103268391 2003-06-14
DE10326839A DE10326839A1 (de) 2003-06-14 2003-06-14 Verfahren zum Abbremsen eines Fahrzeugs
PCT/EP2004/005235 WO2004110804A1 (de) 2003-06-14 2004-05-15 Verfahren zum abbremsen eines fahrzeugs

Publications (2)

Publication Number Publication Date
US20060113158A1 US20060113158A1 (en) 2006-06-01
US7416071B2 true US7416071B2 (en) 2008-08-26

Family

ID=33482887

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/559,515 Active 2025-06-12 US7416071B2 (en) 2003-06-14 2004-05-15 Braking method for a vehicle

Country Status (5)

Country Link
US (1) US7416071B2 (zh)
EP (1) EP1658454B1 (zh)
JP (1) JP2006527342A (zh)
DE (2) DE10326839A1 (zh)
WO (1) WO2004110804A1 (zh)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100217488A1 (en) * 2006-10-17 2010-08-26 Klaus-Dieter Nijakowski Failsafe parking assistance system
US20120048637A1 (en) * 2010-08-25 2012-03-01 Philipp Frueh Method for braking a vehicle in critical driving situations
US9470307B2 (en) 2012-01-16 2016-10-18 Zf Friedrichshafen Ag Method for operating a vehicle drive train

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4872235B2 (ja) * 2005-04-28 2012-02-08 日産自動車株式会社 多段式自動変速機の変速制御装置
JP4805006B2 (ja) * 2006-04-25 2011-11-02 ジヤトコ株式会社 自動変速機における摩擦締結要素干渉検出装置
DE102007048268A1 (de) * 2007-10-08 2009-04-09 Robert Bosch Gmbh Verfahren zur Bremsmomentenerzeugung in Kraftfahrzeugen mit Doppelkupplungsgetriebe
DE102008000645B4 (de) * 2008-03-13 2021-06-24 Zf Friedrichshafen Ag Doppelkupplungsgetriebe in Vorgelegebauweise für ein Fahrzeug mit einer Zentralsynchronisierung
DE102012217704A1 (de) * 2012-09-28 2014-06-12 Bayerische Motoren Werke Aktiengesellschaft Automatisches Bremsen eines ein Automatikgetriebe mit Parksperre umfassenden Kraftfahrzeugs im Fehlerfall
KR101984149B1 (ko) * 2012-10-23 2019-05-30 콘티넨탈 오토모티브 시스템 주식회사 듀얼클러치 트랜스미션이 구비된 차량의 전자 제어식 유압 브레이크 제어 방법
CN103264687A (zh) * 2013-05-31 2013-08-28 浙江吉利汽车研究院有限公司杭州分公司 一种辅助制动方法及装置
US10293798B2 (en) 2014-03-24 2019-05-21 Ford Global Technologies, Llc Braking system with selective braking backup system
DE102014016470A1 (de) * 2014-11-06 2015-12-24 Audi Ag Verfahren zum Betreiben eines Kraftfahrzeugs sowie entsprechendes Kraftfahrzeug
KR101684091B1 (ko) * 2015-04-07 2016-12-20 현대자동차주식회사 자동변속기의 인터락을 이용한 안전 주행 유도 방법
DE102015214117A1 (de) 2015-07-27 2017-02-02 Robert Bosch Gmbh Verfahren zum Abbremsen eines Fahrzeugs
US9963143B2 (en) * 2016-02-18 2018-05-08 Ford Global Technologies, Llc System and method for vehicle subsystem failure mitigation
US10293799B2 (en) * 2016-07-29 2019-05-21 Ford Global Technologies, Llc Methods for transitioning into reduced braking performance modes upon failure of a primary braking system
FR3054988B1 (fr) * 2016-08-12 2019-10-04 Peugeot Citroen Automobiles Sa Procede de freinage d'un vehicule en mode parking automatique utilisant une boite de vitesses automatique
US10239531B2 (en) * 2017-01-10 2019-03-26 GM Global Technology Operations LLC Fault-tolerant automotive braking system
JP2020063754A (ja) * 2018-10-15 2020-04-23 本田技研工業株式会社 変速機制御装置
DE102020111402A1 (de) 2020-04-27 2021-10-28 Audi Aktiengesellschaft Notbremsen eines Kraftfahrzeugs mittels eines Doppelkupplungsgetriebes
DE102022120886A1 (de) * 2022-08-18 2024-02-29 Bayerische Motoren Werke Aktiengesellschaft Verfahren und vorrichtung zum betreiben eines automatisierten kraftfahrzeugs

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3631950A (en) 1968-10-31 1972-01-04 Seiji Tanaka Automatic vehicle transmission with lockup emergency brake
US3994374A (en) 1975-07-23 1976-11-30 Westinghouse Air Brake Company Last resort emergency braking system for heavy vehicle
US4309918A (en) 1978-10-30 1982-01-12 Ab Volvo Retarding means for motor vehicles
JPH04321440A (ja) * 1991-01-10 1992-11-11 Mazda Motor Corp 車両の制動制御装置
US5577580A (en) 1993-09-04 1996-11-26 Robert Bosch Gmbh Safety system in a motor vehicle equipped with an automatic transmission
EP1145927A1 (de) 2000-04-12 2001-10-17 Bayerische Motoren Werke Aktiengesellschaft Elektrisch gesteuertes, insbesondere elektromechanisches Bremssystem für ein Kraftfahrzeug
DE10129067A1 (de) 2001-06-15 2002-12-19 Bosch Gmbh Robert Verfahren und System zum Verzögern eines Fahrzeugs
US6932440B1 (en) 1999-11-03 2005-08-23 Daimlerchrysler Ag Automotive braking method and devices for carrying out said method

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JPH08268268A (ja) * 1995-03-29 1996-10-15 Jidosha Kiki Co Ltd 流体圧によるブレーキ装置の警報システムおよびこの警報システムを用いた圧力源の流体圧失陥警報方法
JP2001116070A (ja) * 1999-10-18 2001-04-27 Toyota Autom Loom Works Ltd 産業車両の制動制御装置
JP2001206218A (ja) * 2000-01-20 2001-07-31 Fuji Heavy Ind Ltd 車両のブレーキフェード警告装置、ａ／ｔ車の走行制御装置及び電気自動車の走行制御装置

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3631950A (en) 1968-10-31 1972-01-04 Seiji Tanaka Automatic vehicle transmission with lockup emergency brake
US3994374A (en) 1975-07-23 1976-11-30 Westinghouse Air Brake Company Last resort emergency braking system for heavy vehicle
US4309918A (en) 1978-10-30 1982-01-12 Ab Volvo Retarding means for motor vehicles
JPH04321440A (ja) * 1991-01-10 1992-11-11 Mazda Motor Corp 車両の制動制御装置
US5577580A (en) 1993-09-04 1996-11-26 Robert Bosch Gmbh Safety system in a motor vehicle equipped with an automatic transmission
US6932440B1 (en) 1999-11-03 2005-08-23 Daimlerchrysler Ag Automotive braking method and devices for carrying out said method
EP1145927A1 (de) 2000-04-12 2001-10-17 Bayerische Motoren Werke Aktiengesellschaft Elektrisch gesteuertes, insbesondere elektromechanisches Bremssystem für ein Kraftfahrzeug
DE10129067A1 (de) 2001-06-15 2002-12-19 Bosch Gmbh Robert Verfahren und System zum Verzögern eines Fahrzeugs

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100217488A1 (en) * 2006-10-17 2010-08-26 Klaus-Dieter Nijakowski Failsafe parking assistance system
US9511756B2 (en) * 2006-10-17 2016-12-06 Robert Bosch Gmbh Failsafe parking assistance system
US20120048637A1 (en) * 2010-08-25 2012-03-01 Philipp Frueh Method for braking a vehicle in critical driving situations
US8694221B2 (en) * 2010-08-25 2014-04-08 Robert Bosch Gmbh Method for braking a vehicle in critical driving situations
US9470307B2 (en) 2012-01-16 2016-10-18 Zf Friedrichshafen Ag Method for operating a vehicle drive train

Also Published As

Publication number Publication date
DE10326839A1 (de) 2004-12-30
DE502004006428D1 (de) 2008-04-17
JP2006527342A (ja) 2006-11-30
EP1658454B1 (de) 2008-03-05
EP1658454A1 (de) 2006-05-24
WO2004110804A1 (de) 2004-12-23
US20060113158A1 (en) 2006-06-01

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